Hinge



March zsf'lsz l -T. B. THURMAN HINGE Filed Nov.'

I N VEN TOR Patented Mar. 29, 1927.

UNITED STATES TANDY B. THURMAN. OF KANSS CITY, MISSOURI, ASSIGNOR TO THE ARTCRAT OOM- PANY, A COMMON-LAW TRUST, COMPOSED F TANDY B. THURMAN', MILDRED THURMAN, AND LENA JOYVTHURM'AN.

HINGE.

lApplication led November 22, 1926.` Serial No. 149,942.

My inventionv relates to hinges and more particularly to vhinges of a latching type.

` My object is to provide a hinge whereby a swinging member may be conveniently posiv tioned and removed and particularly having able to dispense with the usual latches andv ratchets employed to gain similar ends and have provided a pair of Wires coils, the one adapted to rotative insertion into the other; that is, the exterior spiral of the one engaging and threading the interior spiral' groove of the other, considering them as screw threaded elements. The inserted coil is of course of less diameter than the socket coil and in some of my uses preferably coneshaped so that continued rotation in the receiverL causes the device to act as a cone- 0 clutch. One of the coils is to be attached to the closure member and the other to the casing of a window or door or the like.

.The device is susceptible of various adaptations both in the manner of application to 5 the closure and casing and in adjustment of the coils to'each other. I show as a preferable form the coil of larger diameter serving as the butt element of a hinge and being the socket for the reception of a companion l0' coil or pin member that is attachedto the screen. The resilient engagement of the two produce a holding hinge that sustains a screen in any position. Obviously. the device maybe used as a supplementary hinge or l5 stopping element on a vertically hinged door. In another form,l the pin member is cone-shaped, and clutches the socket inember upon rotation, being released by reverse rotation. The relations of the coils may be reversed, the socket being held by the closure. The relative directionsof ceiling the wires constituting the springs may be adapted to the functioning of a cone clutch factor upon the retraction of the closure, the hinge in such case offering. resistance to closure and so constitutinga means of preventing the slamming of the closure. Other adjust ments will suggest themselves to a person skilled in the art, and I wish it understood that such variations in the use of the principal elements that l offer shall be considered as coming within the applicationof my invention. For convenience I have selected certain forms to be described. reference bcing had to the accompanying drawings in which:

, Fig. 1 is a perspective view of the upper portion of a window and window screen, illustrating an embodiment of my invention.

Fig. 2 is a detail'perspective view of parts of a hinge in spaced relation.

Fig. 3 is a sectional view taken longitudinally through the hinge shown in Fig. 2.

Fig. 4 is a modified form of'a hinge in functional position.

Fig. 5 is an enlarged vertical sectional view through the modified form-shown in Fig. 4.

Referring more in detail to the drawings:

l-designates a screen, 2 a window casing with which the hinge is associated, and 3 a keeper 'bracket secured to` the easing and having a iat hook portion 4, the bracket having a comparatively elongated flat socket for the reception of the hinge las will later'be described. There are two brackets on the easing. The hinges are preferably identical in structure, though they may be of opposite type. One Will'be described. A hinge consists of two elements, one a Vsocket member 5 comprising a coil 6 having an exterior end 7 and an arm 8 preferably constructed by bending of an end of the wire radially of the coil to form an elbow 9- and turning the wire and iatteningit to form the a-rm 8. The arm is intended to support the coil by PATENT OFFICE.

the engagement with the hook of the keeper bracket 3.

The second element of the hinge. which may be referred to as the pin member, is

designated 1 0 and comprises a coil 1l ofy `maximum diameter less than that of the socket member by substantially half of the diameter of the socketcoil wire. The coil 1l of the pin member may be cone-shaped, as indicated in Figs. 4 and 5, where the exi tremity 12 is of less diameter than the end 413 whereby a substantial'part of the pin until a substantial part of the pin member is embraced therein. The members are so adjusted by manufacture and manipulation that upon j uxtaposing the-screen to the casing, the arm 8 of the socket member may seat in the keeper bracket 3. The screen may be opened by pushing out its free end, the pin member rotating in the socket member in spiral travel bv reason of the engagement of its exterior thread-like rounds with the inner walls of the rounds of the socket member, and the resiliency of the rounds of the two members provides an additional -spring factor whereby the screen may be pushed out to any desired degree of openness; and the clutch will hold it in any position where it lmay be released. Upon retracting of 'the screen the pin member coil is rotated reversely,.the coiled engagement latching the closure yieldingly against accidental opening.

The device may be applied to a door or window otherwise hinged, in which case a single hinge of my design may serve the purpose of a stop-latch or brake, and may be used in association with a retraction spring that is integral with my device or entirely distinct therefrom. The identical form of'hinge shown in Figs. 1 and 2 heretofore described, is used for the supplemental hinge purposethough a different method of attachment to door or casing may be employed, to overcome the vertical displacement factor arising from the travel of the pin element into the socketmember. In order to avoid placing the strain of such displacement upon the spring member, I provide for the vertically slidable positioning of the hinge in its casing bracket. I show such modification in Figs. 4 and 5 where one of my hinges is shown as applied to a door hung with vertically disposed hinges, the ele-ments and parts .being practically identical with those shown in Figs. 1, 2 and 3. The keeper bracket 17 of Fig. 4 is similar to the keeper bracket 3 of Fig. 1, vertically disposed and having loop 4 provided with a guide whereby the keeper bracket 17 becomes a socket having a verticalopening. The flattened arm of a hinge member seats in said vertical opening slidably whereby the slidably mounted element itself is displaced with relation to the casing, on functioning of the hinge. Lateral relief may be provided for, for example, by angular positioning of the bracket, or by widening of the socket laterally. y

What I claim and desire to secure by Letters Patent is:

1. A hinge comprising interacting coils, one a conical coil, and means of attaching the coils to the elements to be hinged.

2. A hinge comprising coils, one coil interiorly engaging the other, and means for attaching the coils to the elements to be hinged..

3. A hinge comprising resilient coils, one coil interiorly and progressively engaging the other, and means for attaching the coils to the elements to be hinged.

4. A hinge comprising spiral coiled springs having different diameters, the coils -of one adapted to thread in the spiral groove formed by the coils of the other, and mean; for attaching the springs to the elements to be hinged.

5. AA hinge comprising spiral coiled springs having different diameters. the coils of one adapted to engageand thread in the spiral groove formed by the coils of the other, and means for attaching the springs to the elements to be hinged. p

6. A hinge comprising a bracket coil having a bent end constituting a post plate, and a pin coil having a bent end for attachment thereof to a closure, the pin coil having a less diameter than the bracket i coil and adapted to thread into the same.

7. A. hinge for attaching a closure to a casing, comprising wires,'one wire wound and constituting aspiral socket coil, an end thereof bent and flattened and constituting a post plate, and the other wire wound and constituting a conoidal pin coil, one end of raid wire lying in a tangent of said coil and constituting a means of attachment to a closure, the pin coil having a less maximum diameter than the socket coil by approximately half of the diameter of the socket coil wire, the pin coil cone-clutched in the socket coil, the arrangement adapted to the clutching of the flights of the pin coil by the flights of the socket lcoil on the opening of the closure and the functioning of the torsional resistance of the pin coil towards retraction of the closure, for retention of a swinging element in a desired position.

In testimony whereof I affix my Signature.

TANDY B. THURMAN. 

